Average Error: 44.5 → 44.5
Time: 6.4s
Precision: binary64
\[\frac{1 - {\left(1 - a\right)}^{d}}{a}\]
↓
\[\frac{1 - {\left(1 - a\right)}^{d}}{a}\]
\frac{1 - {\left(1 - a\right)}^{d}}{a}
↓
\frac{1 - {\left(1 - a\right)}^{d}}{a}
double code(double a, double d) {
	return ((double) (((double) (1.0 - ((double) pow(((double) (1.0 - a)), d)))) / a));
}
↓
double code(double a, double d) {
	return ((double) (((double) (1.0 - ((double) pow(((double) (1.0 - a)), d)))) / a));
}

Error

Bits error versus a

Bits error versus d

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 44.5

    \[\frac{1 - {\left(1 - a\right)}^{d}}{a}\]

  2. Final simplification44.5

    \[\leadsto \frac{1 - {\left(1 - a\right)}^{d}}{a}\]

Reproduce

herbie shell --seed 2020153 
(FPCore (a d)
  :name "(/ (- 1 (pow (- 1 a) d)) a)"
  :precision binary64
  (/ (- 1.0 (pow (- 1.0 a) d)) a))